@GTA5TexturesByBlaz@GTA5TexturesByBlaz worked fine for me, https://a.pomf.cat/rdlodp.zip
the output is a pair of ytyp+ymap,plus 1 extra ymap if some hashes are unknown to my tool, sometimes these unresolved hashes are vanilla props, so converting it to binary ymap with OpenIV or CodeWalker and then converting it back to .ymap.xml should resolve them, in this case i guess those are just hashes of SA props (eg i noticed a streetlamp1), so probably leftovers from the author of the mod

@GTA5TexturesByBlaz Check the Maxscript Listener if it says some objects are missing in scene then probably your entities have hashed names,try running this to convert the json to ytyp+ymap, then load the ymap instead.